When you’ve completed the printing; you’ll always need to trim the job to size—and know what to look for in a paper cutter: John Smith’s guide to the different types of guillotine will help.
Perhaps you’ve moved a stage further and have to bind your work. For the simple jobs, this guide to binding a single folio will help. When you’re a little more practiced; you can take your work a step further with Jonathan Cooper’s guide to beginning bookbinding
Once everything’s tidy, you’ll need to wrap it carefully for storage or despatch.